# if insert 车票安检
ticket_check = True
ticket_check1 = bool(ticket_check)
knife_length = 30
if ticket_check1 == True:
    print("Coming please checking please")
    if knife_length <=20:
        print("Check over and pass!")
    else:
        print("Check over and reject!")
else:
    print("Get out of here!")
                    
                          
